I recently observed that the player rank info in SGF files (BR, WR) is incorrect. This is somewhat annoying, when you share the SGF with other services. AI Sensei even makes fun of OGS by saying:
“OGS stores incorrect kyu ranks in SGF files. We fixed them automatically, but you might want to double check.”
An example from the SGF file:
PC[OGS: Play Go at online-go.com! | OGS]
My rating was 1kyu at the time, but the SGF says 29kyu…
Thanks for looking into it!